Cross-Charge vs ISD for Common Head-Office Services: Invoice and ITC Decision Matrix
By Ravi Sisodia · Reviewed by CA Divyanshu Sengar · Updated 5 October 2026
2-minute summary
- Classify the cost first: external input service for multiple GSTINs, externally procured service attributable only to another GSTIN, or internally generated head-office service.
- For covered external input-service invoices, route credit through ISD and Rule 39 distribution rather than using a cross-charge merely as a credit-transfer device.
- For internal management, HR, finance or similar services actually supplied by one GSTIN to another, Circular 199 remains relevant to taxability/valuation, read with current law.
- RCM input services within the amended ISD framework need the current statutory/RULE 39 process; system configuration should not rely on pre-April-2025 practice.
Current position
Control and evidence map
| # | Control | What the file should show |
|---|---|---|
| 1 | Map every common service vendor and invoice-receiving GSTIN. | |
| 2 | Create an attribution rule: exclusive branch, multiple branches, or entire group. | |
| 3 | Route covered third-party service credit through the ISD registration and GSTR-6 process. | |
| 4 | Retain cross-charge only for genuine inter-GSTIN supplies that are not simply credit distribution. | |
| 5 | Reconcile ISD credit, cross-charge invoices, branch ITC and expense allocation monthly. | |
Worked example
Head office buys a pan-India software subscription used by six GSTINs. Before April 2025, many groups relied on cross-charge options under the then law. For current periods, the finance team should treat the third-party common input service through the amended ISD mechanism. A separate internal IT-support service performed by HO staff may still need a distinct-person supply/valuation analysis.
Common mistakes
- Using Circular 199’s pre-amendment ISD position without the 1 April 2025 change.
- Cross-charging a vendor invoice only to move ITC.
- Putting internally generated services through ISD as though they were third-party input-service invoices.
- Failing to align vendor master GSTIN with the ISD design.
Frequently asked questions
Is ISD mandatory now?
For the covered input-service invoices within amended sections 2(61)/20, the mandatory framework applies from 1 April 2025.
Is cross-charge abolished?
No. It still applies to genuine supplies between distinct persons, including internally generated services where relevant.
Can the same cost use both mechanisms?
The transaction should be characterised correctly; do not duplicate credit or tax through both routes.
What is the key implementation control?
Vendor invoice routing, ISD registration/GSTR-6, attribution logic and a monthly reconciliation with cross-charge invoices.
Official sources
- CBIC - Notification 16/2024-Central Tax - commencement of amended ISD provisions (2024-08-06)
- CBIC / GST Council - Circular 199/11/2023-GST - services between distinct persons (2023-07-17)
- Central Board of Indirect Taxes and Customs - Central Goods and Services Tax Act, 2017 (current consolidated law)
Disclaimer
Educational and professional reference only; confirm the current law, rates and the facts of your case before relying on this page.